21261878

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{853}}^1$

素因数の和:980

約数の個数: 24

約数和(自身を含む): 35437584

約数和(自身を除く): 14175706

約数列:

[1, 2, 11, 22, 103, 121, 206, 242, 853, 1133, 1706, 2266, 9383, 12463, 18766, 24926, 87859, 103213, 175718, 206426, 966449, 1932898, 10630939, 21261878]

約数ペア:

[(1, 21261878), (2, 10630939), (11, 1932898), (22, 966449), (103, 206426), (121, 175718), (206, 103213), (242, 87859), (853, 24926), (1133, 18766), (1706, 12463), (2266, 9383)]